<?php

namespace backend\controllers;

use Yii;
use common\models\Tag;
use backend\models\search\TagSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use common\widgets\ajaxbtn\AjaxUtil;
use common\widgets\ajaxbtn\Status;
use yii\helpers\Url;

/**
 * TagController implements the CRUD actions for Tag model.
 */
class TagController extends Controller
{

    /**
     * Lists all Tag models.
     * @return mixed
     */
    public function actionIndex()
    {
        $searchModel = new TagSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
        ]);
    }

    /**
     * Displays a single Tag model.
     * @param string $id
     * @return mixed
     */
    public function actionView($id)
    {
        return $this->render('view', [
            'model' => $this->findModel($id),
        ]);
    }

    /**
     * Creates a new Tag model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     * @return mixed
     */
    public function actionCreate()
    {
        $model = new Tag();
        
        if ($model->load(Yii::$app->request->post())) {
        
            $errors = $model->saveWithTrans();
            if(!empty($errors)){
                AjaxUtil::returnBack(Status::$ERROR,$errors);
            }
            AjaxUtil::returnBack(Status::$REDIRECT,Url::to(['index']));
        
        }
        
        return $this->render('create', [
                'model' => $model,
        ]);
        
        
    }
    
    /**
     * Updates an existing Tag model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param string $id
     * @return mixed
     */
    public function actionUpdate($id)
    {
        $model = $this->findModel($id);
        
        if ($model->load(Yii::$app->request->post())) {
        
            $errors = $model->saveWithTrans();
            if(!empty($errors)){
                AjaxUtil::returnBack(Status::$ERROR,$errors);
            }
            AjaxUtil::returnBack(Status::$PARENT_SUCCESS_ALERT_REDIRECT,'操作成功！',Url::to(['index']));
        
        }
        
        return $this->render('update', [
                'model' => $model,
        ]);
        
    }

    /**
     * Deletes an existing Tag model.
     * If deletion is successful, the browser will be redirected to the 'index' page.
     * @param string $id
     * @return mixed
     */
    public function actionDelete($id)
    {
        $this->findModel($id)->deleteWithTrans();

        AjaxUtil::returnBack(Status::$REFRESH);
    }

    /**
     * Finds the Tag model based on its primary key value.
     * If the model is not found, a 404 HTTP exception will be thrown.
     * @param string $id
     * @return Tag the loaded model
     * @throws NotFoundHttpException if the model cannot be found
     */
    protected function findModel($id)
    {
        if (($model = Tag::findOne($id)) !== null) {
            return $model;
        } else {
            throw new NotFoundHttpException('The requested page does not exist.');
        }
    }
}
